In various threads, the Animated GIF's aren't functioning properly. Sometimes they start moving on their own a few seconds later than they should, other times you have to hover the mouse or click on the Animated GIF to get it to work.

This bug appears to be affecting two areas in which Animated GIF's are functioning:

Avatars that feature Animated GIF's sometimes require hovering the mouse over the username to get them to function

Smilies that are also Animated GIF's sometimes require clicking on them to get them functioning

Using Google Chrome on Windows 7-64 bit.

UPDATE: I'm also seeing this happen on NeoWikis that use Animated GIF's (Pokemon Wiki has some of these, for example).